A simple method of two-dimensional intraoperative sonencephalography, employing the A-scan technique.
D001932:Brain Neoplasms / Q000175:diagnosis*; D004388:Dura Mater; D004453:Echoencephalography / Q000295:instrumentation; D005260:Female; D006801:Humans; D008579:Meningioma / Q000175:diagnosis; D008722:Methods; D008875:Middle Aged; D009837:Oligodendroglioma / Q000175:diagnosis